@article{oai:oist.repo.nii.ac.jp:00000270, author = {White, Angela C. and Zhang, Yongping and Busch, Thomas}, issue = {4}, journal = {Physical Review A}, month = {Apr}, note = {We study the phase diagram of a Rashba spin-orbit-coupled Bose-Einstein condensate confined in a two-dimensional toroidal trap. In the immiscible regime we find an azimuthally periodic density distribution, with the periodicity highly tunable as a function of the spin-orbit-coupling strength and which favors an odd number of petals in each component. This allows for a wide range of states that can be created. We further show that in the miscible regime, both components possess states with persistent flows with a unit winding number difference between them and with the absolute values of these winding numbers depending on the spin-orbit-coupling strength. All features of the odd-petal and the persistent flow states can be explained using a simple but effective model.}, title = {Odd-petal-number states and persistent flows in spin-orbit-coupled Bose-Einstein condensates}, volume = {95}, year = {2017} }